// Copyright 2014 The Crashpad Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#ifndef CRASHPAD_UTIL_STDLIB_POINTER_CONTAINER_H_
#define CRASHPAD_UTIL_STDLIB_POINTER_CONTAINER_H_

#include <vector>

#include "base/basictypes.h"
#include "base/stl_util.h"

namespace crashpad {

//! \brief Allows a standard container to “own” pointer elements stored in it.
//!
//! When the container is destroyed, `delete` will be called on its pointer
//! elements.
//!
//! \note No attempt is made to `delete` elements that are removed from the
//!     container by other means, such as replacement or `clear()`.
template <typename ContainerType>
class PointerContainer : public ContainerType {
 public:
  PointerContainer() : ContainerType(), pointer_deleter_(this) {}

  ~PointerContainer() {}

 private:
  STLElementDeleter<ContainerType> pointer_deleter_;

  DISALLOW_COPY_AND_ASSIGN(PointerContainer);
};

//! \brief Allows a `std::vector` to “own” pointer elements stored in it.
//!
//! When the vector is destroyed, `delete` will be called on its pointer
//! elements.
//!
//! \note No attempt is made to `delete` elements that are removed from the
//!     vector by other means, such as replacement or `clear()`.
template <typename T>
using PointerVector = PointerContainer<std::vector<T*>>;

}  // namespace crashpad

#endif  // CRASHPAD_UTIL_STDLIB_POINTER_CONTAINER_H_